| Kanal to Olympia Heights (Florida) | 5,138.63 mi (8,269.82 km) |
| Kanal to Omaha (Nebraska) | 5,014.34 mi (8,069.81 km) |
| Kanal to On Top of the World Designated Place (Florida) | 5,062.27 mi (8,146.94 km) |
| Kanal to Onalaska (Wisconsin) | 4,712.08 mi (7,583.36 km) |
| Kanal to Oneida (New York) | 4,153.64 mi (6,684.64 km) |
| Kanal to Oneonta (New York) | 4,155.28 mi (6,687.28 km) |
| Kanal to Ontario (California) | 6,121.85 mi (9,852.16 km) |
| Kanal to Ontario (Oregon) | 5,517.73 mi (8,879.92 km) |
| Kanal to Opa-locka (Florida) | 5,126.45 mi (8,250.22 km) |
| Kanal to Opelika (Alabama) | 5,023.29 mi (8,084.20 km) |
| Kanal to Opelousas (Louisiana) | 5,404.79 mi (8,698.16 km) |
| Kanal to Orange (California) | 6,142.17 mi (9,884.87 km) |
| Kanal to Orange (Texas) | 5,493.10 mi (8,840.28 km) |
| Kanal to Orange City (Florida) | 5,026.89 mi (8,090.00 km) |
| Kanal to Orangeburg (South Carolina) | 4,793.79 mi (7,714.86 km) |
